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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 151 · 40 questions
TalentJR

How to think it through (Test every number): Check each number for a property: even/odd, prime (only two factors), square (4, 9, 16 …), or a multiple of 3, 4, 5 … 9. Find the property that three numbers share and one does not. Make sure no other property points at a different number — then that one is the odd one out.

NameDateTime takenScore ___ / 40
  1. 1.Which number is the odd one out: 81, 89, 37, 23? (a) 81 (b) 89 (c) 37 (d) 23
  2. 2.Which number is the odd one out: 50, 19, 31, 13? (a) 50 (b) 19 (c) 31 (d) 13
  3. 3.Which number is the odd one out: 37, 71, 87, 67? (a) 37 (b) 71 (c) 87 (d) 67
  4. 4.Which number is the odd one out: 5, 18, 99, 90? (a) 5 (b) 18 (c) 99 (d) 90
  5. 5.Which number is the odd one out: 67, 23, 83, 28? (a) 67 (b) 23 (c) 83 (d) 28
  6. 6.Which number is the odd one out: 11, 69, 53, 19? (a) 11 (b) 69 (c) 53 (d) 19
  7. 7.Which number is the odd one out: 95, 15, 78, 50? (a) 95 (b) 15 (c) 78 (d) 50
  8. 8.Which number is the odd one out: 73, 7, 35, 13? (a) 73 (b) 7 (c) 35 (d) 13
  9. 9.Which number is the odd one out: 17, 30, 29, 75? (a) 17 (b) 30 (c) 29 (d) 75
  10. 10.Which number is the odd one out: 31, 83, 90, 53? (a) 31 (b) 83 (c) 90 (d) 53
  11. 11.Which number is the odd one out: 79, 17, 76, 73? (a) 79 (b) 17 (c) 76 (d) 73
  12. 12.Which number is the odd one out: 19, 20, 83, 89? (a) 19 (b) 20 (c) 83 (d) 89
  13. 13.Which number is the odd one out: 7, 49, 16, 64? (a) 7 (b) 49 (c) 16 (d) 64
  14. 14.Which number is the odd one out: 53, 24, 31, 11? (a) 53 (b) 24 (c) 31 (d) 11
  15. 15.Which number is the odd one out: 6, 96, 43, 48? (a) 6 (b) 96 (c) 43 (d) 48
  16. 16.Which number is the odd one out: 62, 86, 34, 21? (a) 62 (b) 86 (c) 34 (d) 21
  17. 17.Which number is the odd one out: 18, 97, 19, 31? (a) 18 (b) 97 (c) 19 (d) 31
  18. 18.Which number is the odd one out: 13, 26, 73, 23? (a) 13 (b) 26 (c) 73 (d) 23
  19. 19.Which number is the odd one out: 53, 78, 24, 96? (a) 53 (b) 78 (c) 24 (d) 96
  20. 20.Which number is the odd one out: 53, 47, 73, 24? (a) 53 (b) 47 (c) 73 (d) 24
  21. 21.Which number is the odd one out: 13, 31, 93, 84? (a) 13 (b) 31 (c) 93 (d) 84
  22. 22.Which number is the odd one out: 30, 29, 79, 43? (a) 30 (b) 29 (c) 79 (d) 43
  23. 23.Which number is the odd one out: 24, 63, 12, 72? (a) 24 (b) 63 (c) 12 (d) 72
  24. 24.Which number is the odd one out: 13, 31, 70, 35? (a) 13 (b) 31 (c) 70 (d) 35
  25. 25.Which number is the odd one out: 48, 12, 95, 40? (a) 48 (b) 12 (c) 95 (d) 40
  26. 26.Which number is the odd one out: 64, 13, 89, 61? (a) 64 (b) 13 (c) 89 (d) 61
  27. 27.Which number is the odd one out: 40, 56, 30, 28? (a) 40 (b) 56 (c) 30 (d) 28
  28. 28.Which number is the odd one out: 55, 73, 13, 43? (a) 55 (b) 73 (c) 13 (d) 43
  29. 29.Which number is the odd one out: 85, 94, 95, 65? (a) 85 (b) 94 (c) 95 (d) 65
  30. 30.Which number is the odd one out: 28, 76, 91, 44? (a) 28 (b) 76 (c) 91 (d) 44
  31. 31.Which number is the odd one out: 97, 41, 94, 17? (a) 97 (b) 41 (c) 94 (d) 17
  32. 32.Which number is the odd one out: 37, 3, 83, 39? (a) 37 (b) 3 (c) 83 (d) 39
  33. 33.Which number is the odd one out: 75, 36, 20, 65? (a) 75 (b) 36 (c) 20 (d) 65
  34. 34.Which number is the odd one out: 95, 67, 83, 73? (a) 95 (b) 67 (c) 83 (d) 73
  35. 35.Which number is the odd one out: 67, 62, 59, 17? (a) 67 (b) 62 (c) 59 (d) 17
  36. 36.Which number is the odd one out: 53, 94, 11, 41? (a) 53 (b) 94 (c) 11 (d) 41
  37. 37.Which number is the odd one out: 59, 80, 29, 23? (a) 59 (b) 80 (c) 29 (d) 23
  38. 38.Which number is the odd one out: 48, 96, 25, 64? (a) 48 (b) 96 (c) 25 (d) 64
  39. 39.Which number is the odd one out: 40, 16, 64, 75? (a) 40 (b) 16 (c) 64 (d) 75
  40. 40.Which number is the odd one out: 17, 29, 79, 88? (a) 17 (b) 29 (c) 79 (d) 88

Answer key

  1. 81
  2. 50
  3. 87
  4. 5
  5. 28
  6. 69
  7. 78
  8. 35
  9. 30
  10. 90
  11. 76
  12. 20
  13. 7
  14. 24
  15. 43
  16. 21
  17. 18
  18. 26
  19. 53
  20. 24
  21. 84
  22. 30
  23. 63
  24. 70
  25. 95
  26. 64
  27. 30
  28. 55
  29. 94
  30. 91
  31. 94
  32. 39
  33. 36
  34. 95
  35. 62
  36. 94
  37. 80
  38. 25
  39. 75
  40. 88

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